Home » BBC News - Technology » technology news » Circular runways: Engineer defends his proposal Circular runways: Engineer defends his proposal Unknown 2:52 AM BBC News - Technology technology news The engineer who proposed circular runways answers critics in defence of his radical design for airports. from BBC News - Technology http://ift.tt/2os7SeJ Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati